CN202561471U - A lighting device and a lighting apparatus - Google Patents
A lighting device and a lighting apparatus Download PDFInfo
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- CN202561471U CN202561471U CN2012200744709U CN201220074470U CN202561471U CN 202561471 U CN202561471 U CN 202561471U CN 2012200744709 U CN2012200744709 U CN 2012200744709U CN 201220074470 U CN201220074470 U CN 201220074470U CN 202561471 U CN202561471 U CN 202561471U
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- outer cover
- cover component
- lamp
- socket
- light emitting
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Abstract
A lighting device and a lighting apparatus are provided. The lighting device is capable of ensuring thermal reliability for inhibiting decline of luminous efficiency, and mechanical reliability of a cover member. The illumination device (10) comprises a main body (11), a light emitting portion (13), the cover member (14), as well as an engaging unit (17). The main body (11) has thermal conductivity and contains a rigid body. The light emitting portion (13) is disposed on the main body and includes a solid-state light emitting element (12). The cover member (14) is disposed to cover the solid-state light emitting element of the light emitting portion, and contains a rigid body having thermal conductivity and light transmittance. The engaging unit (17) comprises a groove portion (17a) and a projecting portion (17b), and brings the main body and the cover member into engagement. Moreover, heat generated by the solid-state light emitting element is conducted to the cover member via the engaging unit.
Description
Technical field
The embodiment of the utility model relates to a kind of lighting device and ligthing paraphernalia, with the solid-state light emitting element of light emitting diode (diode) etc. as light source.
Background technology
In recent years; Because the solid-state light emitting element for example luminous efficiency of light emitting diode (below be called " LED (Light Emitting Diode) ") improves; Therefore be used as the light source that general lighting is used, and developed the lighting device of various LED lamps (lamp) or light fixture etc.
[prior art document]
[patent documentation]
[patent documentation 1] Japanese Patent Laid is opened the 2009-37995 communique
[patent documentation 2] Japanese Patent Laid is opened the 2006-49410 communique
[patent documentation 3] japanese patent laid-open 8-273609 communique
Yet for LED, along with temperature rises, light output can descend, thereby luminous efficiency can descend, and therefore, needs to suppress the rising of temperature.In addition, the life-span of LED lamp is long, and prolonged and repeatedly is used with lighting a lamp, extinguish.Therefore, for lamp constitutes, particularly for the combining of the outer cover that comprises lampshade (globe) (cover) member and body, need guarantee Mechanical Reliability fully.Therefore, this kind is the important topic of solid-state light emitting element as the lighting device of light source: how to obtain in order to the decline that suppresses luminous efficiency thermal reliability, with the Mechanical Reliability of lampshade.
The utility model content
The utility model is the utility model that forms in view of said problem, purpose be the lighting device and the ligthing paraphernalia that provide following, this lighting device can guarantee in order to the thermal reliability of the decline that suppresses luminous efficiency, with the Mechanical Reliability of outer cover component.
The lighting device of embodiment comprises: body, illuminating part, outer cover component and engaging unit.Body has thermal conductivity and comprises rigid body.Illuminating part is equipped on body and comprises solid-state light emitting element.Outer cover component is to be arranged to the solid-state light emitting element of illuminating part is covered, and comprises the rigid body with thermal conductivity and light transmission.The engaging unit comprises slot part and teat, and body is engaged with outer cover component.And the heat that solid-state light emitting element produced conducts to outer cover component via the engaging unit.
[effect of utility model]
According to the utility model, following lighting device can be provided, this lighting device can guarantee in order to the thermal reliability of the decline that suppresses luminous efficiency, with the Mechanical Reliability of outer cover component.
Description of drawings
Fig. 1 representes the lighting device as the embodiment of the utility model; Fig. 1 (a) is the vertical view of representing with the state that outer cover component is removed; Fig. 1 (b) is a profilograph; Fig. 1 (c) is the profile that amplifies the B part of this (b) of ground expression figure, and Fig. 1 (d) is the profile that amplifies the A part of this (b) of ground expression figure.
Fig. 2 is the front view as the lighting device of the embodiment of the utility model.
Fig. 3 representes lighting device, and Fig. 3 (a) is the profile that amplifies expression engaging unit, ground, the notch part of Fig. 3 (b) expression engaging unit, and be to observe being seen stereogram from the top to body.
Fig. 4 model utility ground expression lighting device, Fig. 4 (a) is the front view of outer cover component, and Fig. 4 (b) is the upward view of outer cover component, and Fig. 4 (c) is the side view of the shaping dies of outer cover component, and Fig. 4 (d) is the upward view of the shaping dies of outer cover component.
Fig. 5 is the profile that the ligthing paraphernalia of diagrammatically representing to be equipped with lighting device is arranged at the state of ceiling.
Fig. 6 representes the variation of lighting device, and Fig. 6 (a) is the profile that is equivalent to Fig. 3 (a) of expression first variation, and Fig. 6 (b) is the profile that is equivalent to Fig. 3 (a) of expression second variation.
[explanation of symbol]
10: lighting device/the attach lamp of socket
11: body
11a, 11b, 20a, 31a: peristome
11a1: open end
11c: incorporating section
11e: base plate supports portion
11f: convex strip portions
12: solid-state light emitting element/LED
13: illuminating part
13a: substrate
13b: fixed cell
14: outer cover component
14a: opening
14b: front end
15: ignition device
15a: circuit substrate
15b: electronic component
15c, S: bonding agent
16: the socket member
16a: shell portion
16b: electric insulation portion
16c: eyelet portion
17: the engaging unit
17a: slot part
17a1: notch part
17a2: wall
17a4,17b1: rake
17b: teat
17b2: section portion
17b3: lower surface
20: insulation crust
20c: socket installation portion
30: ligthing paraphernalia
31: apparatus body
32: reflector
33: lamp socket
A, B: part
D1: external diameter
K1, K2: assembling die
L1: total length
O, O ': center
P: spatial portion
S: bonding agent
T: top
T1, t2: wall thickness dimension
X-x: center line
X: ceiling surface
Y: optical axis
The specific embodiment
Below, come the embodiment of illumination apparatus and ligthing paraphernalia to describe according to figure.
At first, the formation of illumination apparatus describes.The lighting device of this embodiment for example constitutes the small-sized lamp that attaches socket 10, and the lamp that attaches socket 10 that this is small-sized can replace the mini krypton lamp bubble (mini krypton bulb) that attaches the E17 socket of 60W.To shown in Fig. 4 (a)～Fig. 4 (d), the lighting device of said embodiment comprises: body 11 comprises the rigid body with thermal conductivity like Fig. 1 (a)～Fig. 1 (d); Illuminating part 13 is equipped on body 11 and illuminating part 13 has solid-state light emitting element 12; Outer cover component 14 is arranged to that solid-state light emitting element 12 with illuminating part 13 covers and outer cover component 14 comprises the rigid body that has thermal conductivity and have light transmission; And engaging unit 17, comprise the slot part 17a and the teat 17b that are provided with for body 11 is engaged with outer cover component 14.
For to after illuminating part 13, ignition device 15 and the socket member 16 stated support, body 11 must have certain rigid, and the heat of self-luminescent part 13 or ignition device 15 discharges for future, said body 11 must have thermal conductivity.In order to satisfy these conditions, in this embodiment, utilize aluminium to constitute body 11.The body 11 that comprises aluminium is cross section shape and is roughly circular cylindricly and form as one with incorporating section 11c, and this incorporating section 11c at one end portion's side has the big peristome 11a of diameter, and side has the little peristome 11b of diameter in the other end.In addition; As shown in Figure 2; The outer peripheral face of body 11 forms: to the roughly cone shape inclined-plane that the other end side diminishes successively, and outward appearance constitutes following shape to diameter, the profile (silhouette) of the neck of this shape approximation in mini krypton lamp bubble from an end side.The aluminum body 11 that for example utilizes casting, forging or cut to wait to make this kind formation constitutes this aluminum body 11 and has the open cylindrical shell of a space and an end in inside.
At the peristome 11a place of an end side of body 11, formed the 11e of base plate supports portion, the 11e of this base plate supports portion is the mode with the recessed section portion that forms ring-type, and the surface of recessed section portion is formed smooth face.Around the said base plate supports 11e of portion, form the convex strip portions 11f that is ring (ring) shape.In addition, the incorporating section 11c that is integrally formed in body 11 is formed with in inside in order to set the space of circuit substrate, the ignition device 15 that this circuit substrate is stated after constituting.The center line x-x that the cross section of said incorporating section 11c is with body 11 is the circular at center, and is the roughly truncated cone shape that internal diameter diminishes to the other end side from an end side.In order to realize the electric insulation of ignition device 15 and body 11, in the 11c of incorporating section, be fixed with insulation crust (case) 20.
In this embodiment, utilize light emitting diode (below be called " LED ") to constitute solid-state light emitting element 12, and in this embodiment, this solid-state light emitting element 12 comprise: 4 surface mount devices (Surface Mount Device, SMD) LED of type.Moreover; LED also can be so-called plate and carries chip (Chip on Board; COB) LED of type, the LED of this so-called COB (Chip on Board) type are by a plurality of led chips (chip) and by said led chip institute excited fluorescent body, send the light of white (comprise look in daytime, color of sunshine, and bulb look).
Illuminating part 13 comprises the substrate of thermal conductivity good metal system, in this embodiment, comprises: the substrate 13a of flat thin and rounded tabular aluminum.On the face of the top on the surface of this substrate 13a (Fig. 1 (b)), across the electric insulation layer of silicone resin etc. and be formed with the Wiring pattern (pattern) that comprises Copper Foil.4 each LED 12 with the mode that roughly is concentric circles, roughly equally spaced set and be installed on the said Wiring pattern.Whereby, constitute the illuminating part 13 comprise light emitting module (module), to be 4 LED 12 with symmetrical manner roughly be equipped on circle and be tabular substrate 13a this light emitting module forms (Fig. 1 (a)).
In order to realize the formed base plate supports of the end side 11e of the portion electric insulation with body 11; Across (not shown) such as electric insulation sheets that comprise silicone resin etc.; Use the fixed cell 13b of screw etc., the illuminating part 13 that constitutes in this way is fixed in the surface of the 11e of base plate supports portion of the face that is smooth.Whereby, illuminating part 13 adherences and be fixed in the 11e of base plate supports portion.
Whereby; Illuminating part 13 is equipped on an end side of body 11; And the adherence positively of the back side of substrate 13a is in the 11e of base plate supports portion of body 11, and utilizes the good aluminium of thermal conductivity to constitute substrate 13a, therefore; Can effectively the main heat that is produced by the rear side of LED 12 be conducted to body 11, and this heat is discharged.According to said formation, the central shaft x-x of optical axis y and body 11 that comprises the illuminating part 13 of the substrate 13a that 4 LED 12 are installed roughly coincide, and the light source portion that is constructed as follows, and this light source portion comprises on the whole light-emitting area roughly rounded when overlooking.
As stated, use light transparent ceramic, whereby, can effectively utilize and be helpless to the outer cover component that dispels the heat in the past, the heat that solid-state light emitting element produced is discharged with producing effect, thereby can make the luminous efficiency raising as outer cover component 14.One carry on the way; In the past, although this kind outer cover component for example the surface area of lampshade with respect to the whole surface area that attaches the lamp of socket, in occupation of about ratio of about 30%～40%; But the material of these outer cover components has been used glass (glass) or synthetic resin; Therefore, thermal conductivity is low, is helpless to make radiating effect to improve.With respect to this; According to this embodiment; Utilize the light transparent ceramic of excellent thermal conductivity to constitute outer cover component, the surface area of this outer cover component is in occupation of about ratio of about 30%～40%, whereby; The thermal diffusivity of whole lamp is improved, thereby can constitute the lighting device of the higher lamp that attaches socket of efficient etc.
In order to protect illuminating part 13, the outer cover component 14 that constitutes in this way is illuminating part 13 is given the peristome 11a that is fixed in body 11 in a covered manner.Said fixedly is that body 11 with the aluminum that comprises rigid body combines with the outer cover component 14 of the pottery system that comprises rigid body equally; Owing to must efficient better the heat of illuminating part 13 be conducted to outer cover component 14 from body 11; And then this heat is discharged; Therefore, combine in such a way.
That is, shown in Fig. 3 (a), Fig. 3 (b), for example; Owing to be difficult to utilize the material high like the flexibility of synthetic resin and so on; The body 11 that will have rigidity combines with outer cover component 14, and therefore, the bonding agent good by thermal conductivity combines said body 11 with outer cover component 14.And; For the outer cover component 14 and the position of body 11 can not misplaced because of long-term creep (creep) (thermal creep); Come mechanically to make said outer cover component 14 to engage with body 11 and fix by engaging unit 17, said engaging unit 17 comprises: the slot part 17a and the teat 17b that are provided with in opposite directions with body 11 and outer cover component 14.
The engaging unit 17 comprise: the slot part 17a of ring-type, be integrally formed in an end side of body 11 the peristome inner peripheral surface, be the inner peripheral surface of convex strip portions 11f; And teat 17b, be formed at the outer peripheral face of outer cover component 14.Slot part 17a comprises: notch part 17a1 (Fig. 1 (a), Fig. 3 (b)), this notch part 17a1 use the teat 17b for outer cover component 14 to insert.Incision integratedly is formed with a pair of two notch part 17a1, and these a pair of two notch part 17a1 have symmetry with respect to the center O of body 11.
Shown in Fig. 4 (a), Fig. 4 (b) model utility, teat 17b comprises a pair of two tabs, and said a pair of two tabs are with respect to the center O of outer cover component 14 ' have symmetry, and the tab-like integratedly outer peripheral face that is formed in outer cover component 14.With with respect to the direction of the slot part 17a of body 11 and the mode that becomes the inclined plane shape of dwell angle degree forms rake 17b1, the 17b2 of section portion in the form of a ring is integrally formed in the top of teat 17b.Rake 17b1 comprises: be formed at the upper surface of teat 17b rake, be formed at the rake of two sides.As long as following angle is satisfied at the angle of inclination of this rake 17b1, this angle is: when comprising the lampshade shaping of pottery, and the degree of the draw taper of employed shaping dies.
Then, with the position alignment of a pair of notch part 17a1 of a pair of teat 17b of outer cover component 14 and body 11, so that teat 17b is inserted in the slot part 17a from notch part 17a1, and make the angle of this teat 17b rotation (rotation all can) to the left or to the right regulation.Whereby, shown in Fig. 3 (a), teat 17b is sticked in the slot part 17a and is mechanically combined, thus the dislocation of the outer cover component 14 that prevents to cause and body 11 by long-term creep (thermal creep).Moreover, preferably, in advance bonding agent S is coated the slot part 17a of body 11.Bonding agent is preferably: comprise the bonding agent with thermal conductivity and stable on heating silicone resin or epoxy resin etc.
In addition, slot part 17a engages with teat 17b, and whereby, the wall 17a2 of the lower surface of slot part 17a joint and thermally coupled are in the lower surface 17b3 of teat 17b.Simultaneously, the lower surface engages of the 17b2 of section portion of outer cover component 14 and thermally coupled are in the open end 11a1 of the peristome 11a of body 11.Moreover, even when said when hot linked part is formed with a little gap because bonding agent S enters to this gap, therefore, thermally coupled is able to keep.According to said effect, by utilization have bonding agent S and the engaging unit 17 of thermal conductivity and form and body 11 between thermally coupled, can be efficiently the heat of the illuminating part that conducts to body 11 13 be conducted to outer cover component 14.
Moreover, under the fastening state of slot part 17a and teat 17b, in the spatial portion P of formed section shape triangular in shape, become the portion that accumulates of bonding agent, and prevent that bonding agent S from oozing out into the surface of body 11, and also good in appearance.Simultaneously,, therefore, can fix more firmly because bonding agent S is filled in spatial portion P, and can be by said bonding agent of having filled, the heat that will conduct to the illuminating part 13 of body 11 more efficiently conducts to outer cover component 14.
According to foregoing; Can come will comprise securely the body 11 of rigid body aluminum each other by engaging unit 17 fixes with the outer cover component 14 of pottery system; And prevent the dislocation of outer cover component 14 and body 11, thereby can positively the LED 12 of illuminating part 13 be covered by outer cover component 14 is long-term.And, can come efficient well the heat of illuminating part 13 to be conducted to outer cover component 14 by engaging unit 17, and this heat is discharged.Whereby, the outer cover component 14 that comprises light transparent ceramic can simultaneously make the light diffusion and the one side that radiate from LED12 make this light transmission, and the main heat that is produced by the face side of LED 12 is released into the outside.Simultaneously; By engaging unit 17; With mode that can heat conduction outer cover component 14 is connected in the peristome 11a of body 11, the heat that is mainly produced by the rear side of LED 12 is conducted to outer cover component 14 from body 11, then this heat is discharged; Bring into play resultful thermolysis whereby, thereby can suppress the decline of the luminous efficiency of LED.
In addition, in this embodiment, comprise the wall thickness dimension heterogeneity of the outer cover component 14 of light transparent ceramic.That is, the ratio of minimum wall thickness (MINI W.) portion and thickest portion constitutes more than 1: 3.In this embodiment, shown in Fig. 1 (b), Fig. 1 (c), the wall thickness dimension t1 (Fig. 1 (b)) of top T is made as about 1mm, the wall thickness dimension t2 (Fig. 1 (c)) of opening 14a side is made as about 3mm, minimum wall thickness (MINI W.) portion becomes top T, and thickest portion becomes opening 14a.Whereby, the light transmission of top T side is improved, the corresponding luminous intensity distribution of purposes that can produce and throw light on or the diffusivity of light for example can be brightly to throwing light under the Down lamp (down light).In addition, make opening 14a thickening, that is, make, and it is long-pending that the contact area of this part is made as large contact surface, whereby, can make heat conduct to outer cover component 14 from body 11 sides efficiently as outer cover component 14 part thickening with the contact site of body 11.And, can make the intensity raising of outer cover component 14 being fixed in the part of body 11.Simultaneously, when making outer cover component 14, need not equably whole outer cover component to be processed, the machining accuracy of the high pottery of processing difficulty is improved, thereby can guarantee stable productivity.Moreover the D outer diameter 1 (Fig. 2) of outer cover component 14 constitutes about 35mm.
In addition; On the outer peripheral face of outer cover component 14, be formed with a pair of teat 17b of engaging unit 17; This a pair of teat 17b is with respect to the center O of outer cover component 14 ' have symmetry, and said a pair of teat 17b forms and comprise rake 17b1, therefore; Shown in Fig. 4 (c), Fig. 4 (d); Can not use complicated mould and come easily to make the outer cover component 14 of pottery system, productivity is improved, thereby can be formed in the favourable lighting device in cost aspect by 2 (piece) assembling die K1, K2.
Shown in Fig. 1 (b), ignition device 15 comprises: the flat circuit substrate 15a of circuit component is installed, and said circuit component constitutes the lamp circuit of each LED 12.This lamp circuit converts the alternating voltage of 100 V the DC voltage of 24V into, and the DC current that will decide electric current is supplied to each LED 12.Circuit substrate 15a constitutes banded elongate shape and on single face or two faces, is formed with circuit pattern.On the installed surface of this circuit substrate 15a; The chip element etc. of lead (lead) part or the transistor (transistor) etc. of small-sized electrolytic capacitor (electrolytic condenser) etc. is installed, in order to constitute a plurality of small-sized electronic component 15b of lamp circuit.And; In the housing recess 11c of said body 11 in the set insulation crust 20; Longitudinally accommodating circuit substrate 15a; And be filled with the bonding agent 15c that thermal conductivity is good and electric insulating quality is good of silicone resin or epoxy resin etc., so that said circuit substrate 15a and electronic component 15b are imbedded and fix.Whereby, the heat that each electronic component 15b is produced is in the inner dispersion of bonding agent, and is saturated afterwards by homogenization.In addition, be connected in the lead-out terminal of circuit substrate 15a in order to lead (not shown), and input line (not shown) is connected in input terminal to the power supply usefulness of each LED 12 power supplies.
Shown in Fig. 1 (b), in the E17 socket of Edison's type (Edison type), the socket member 16 that is connected in ignition device 15 and is arranged at the other end side of body 11 comprises: the 16a of shell portion of tubular with copper coin system of screw thread; And the eyelet of electric conductivity (eyelet) 16c of portion, be arranged at the top of the lower end of the said shell 16a of portion via the 16b of electric insulation portion.The peristome of the 16a of shell portion is embedded in the socket installation portion 20c of insulation crust 20 from the outside; By the adhering method of the bonding agent that utilizes silicone resin or epoxy resin etc. or hold back the method for closing (caulking) etc., the other end side that peristome and the body 11 electric insulation ground of the said shell 16a of portion are fixed in body 11.The input line is connected in 16a of shell portion and the 16c of eyelet portion, and said input line is the input line that the input terminal of the circuit substrate 15a from ignition device 15 is derived.
Whereby; Constitute the lamp that attaches socket 10 of bulb-shaped; The lamp that attaches socket 10 of this bulb-shaped comprises the milky lampshade that is made up of the outer cover component that comprises light transparent ceramic 14 in an end side of body 11, and comprises the illuminating part 13 as light source with LED 12; Side is provided with E17 socket member 16 in the other end, and whole face shaping is similar to the profile (Fig. 2) of the mini krypton lamp bubble of 60 W.The said total length L1 that attaches the lamp of socket is about 67mm.
Then, the formation of illumination utensil describes, and the lamp that attaches socket 10 that this ligthing paraphernalia will constitute in this way is as light source.As shown in Figure 5, the 30th, the existing light fixture of Down lamp formula, this ligthing paraphernalia 30 is imbedded the ceiling surface X that is arranged at shop etc., and the mini krypton lamp bubble that will have an E17 socket is as light source.Said ligthing paraphernalia 30 comprises: apparatus body 31 is the metal case shape that has peristome 31a at lower surface; Metal reflector 32 is embedded in peristome 31a; And lamp socket (socket) 33, can screw in by the E17 socket of mini krypton lamp bubble.Reflector 32 for example is that the metallic plate by stainless steel etc. constitutes, and is provided with lamp socket 33 at the central portion of the top panel of reflector 32.
In the existing light fixture 30 of the mini krypton lamp bubble usefulness that constitutes in this way,, uses saidly to replace mini krypton lamp to steep as the lamp that attaches socket 10 of the bulb-shaped of light source LED for energy-conservation or long lifetime etc.That is, constitute E17 owing to attach the socket member 16 of the lamp 10 of socket, therefore, this lamp 10 that attaches socket can directly be inserted into the lamp socket 33 of the mini krypton lamp bubble usefulness of said ligthing paraphernalia.At this moment; Be roughly cone shape inclined-plane owing to attach the outer peripheral face of the lamp 10 of socket; And outward appearance constitutes the shape of the profile that is similar to the neck in the mini krypton lamp bubble; Therefore, neck can not bump with reflector 32 grades of lamp socket periphery and can successfully insert, and the lamp that attaches socket 10 of bulb-shaped improves for the relevance factor of existing ligthing paraphernalia.Whereby, constitute the energy-saving Down lamp of LED as light source.Certainly, also can likewise constitute novel Down lamp with said content.
After under said state, power supply being connected, come supply power via the socket member 16 of the lamp that attaches socket 10 from lamp socket 33, ignition device 15 work, and the DC voltage of 24V exported.Said DC voltage is applied to each LED 12 from ignition device 15, is supplied to after the DC current of deciding electric current, and whole LED 12 light a lamp simultaneously.
The white that radiates from each LED 12 wide causes equably the total inner surface radiation to outer cover component 14, and the milky lampshade that comprises light transparent ceramic makes the light diffusion, therefore, can have the illumination with the approximate light distribution characteristic of mini krypton lamp bubble.In addition, substrate 13a is tabular, and LED 12 is installed on the surface of this substrate 13a; And be wrapped in the back side in the 11e of base plate supports portion that comprises recessed section portion of an end side of body 11; Therefore, substrate 13a can not come across the inner surface of lampshade as shadow, and substrate 13a can not hinder light distribution characteristic.Particularly approach the luminous intensity distribution of mini krypton lamp bubble as the luminous intensity distribution of the lamp that attaches socket 10 of light source; Therefore; Near the exposure of the light of reflector 32 irradiations the lamp socket 33 that in ligthing paraphernalia 30, is disposed increases, and can roughly obtain the described utensil characteristic of optical design as the reflector 32 that constitutes mini krypton lamp bubble usefulness.
In addition; Obtain the optics homogenieity by light transparent ceramic easily through the integrally formed lampshade that forms; Can make the light diffusion more equably; Thereby can have the illumination of more steeping approximate light distribution characteristic with mini krypton lamp, perhaps can have the illumination of following light distribution characteristic: this light distribution characteristic is more than the light distribution characteristic of said mini krypton lamp bubble.And, also having hear resistance and mechanical strength fully, the vibrations when being difficult for because of transportation etc. etc. are damaged.
Simultaneously, after the lamp that attaches socket 10 of bulb-shaped was lit a lamp, the temperature of LED 12 can rise and produce heat.The promptly main heat that is produced by the face side of LED 12 of this heat is released into the outside from the outer cover component 14 that comprises light transparent ceramic.In addition; The heat that mainly promptly produces in the rear side of substrate 13a by the rear side of LED 12; Conduct to direct adherence and be fixed with the 11e of base plate supports portion of substrate from the substrate 13a that comprises the good aluminium of thermal conductivity, then the outer peripheral face from the body 11 that comprises aluminium is released into the outside.The temperature that suppresses LED 12 by said resultful thermolysis rises.
In addition; Particularly in this embodiment; Utilize engaging unit 17 to make body 11 and outer cover component 14 form thermally coupled, whereby, can efficiently the heat of coming self-luminescent part 13 that conducts to body 11 be conducted to outer cover component 14; And the main heat that is produced by the rear side of LED 12 is conducted to outer cover component 14 from body 11, and this heat is discharged.Therefore, produce more resultful thermolysis, the temperature of LED12 is risen further be suppressed, thereby the decline of luminous efficiency that attaches the lamp of socket is suppressed.Whereby, can be used as Down lamp and carry out bright illumination.
More than, according to this embodiment, utilize light transparent ceramic to constitute outer cover component 14, and give with LED 12 said outer cover component 14 is set in a covered manner and in opposite directions illuminating part 13.Therefore, can make the light transmission of radiating, and the heat that can LED 12 be produced discharges with producing effect, thereby the lighting device of the lamp that attaches socket etc. of the decline that can suppress luminous efficiency can be provided from LED 12.In addition, utilize thermal coefficient of expansion (aluminium oxide: 6.0 * 10
-6/ ℃) little light transparent ceramic constitutes outer cover component 14; And; Outer cover component 14 is firmly fixed at body 11 by bonding agent S with engaging unit 17, therefore, also can positively prevent by expand whereabouts naturally etc. of the outer cover component 14 cause of thermal cycle (heat cycle).It is to light a lamp times without number, extinguish and produce because of lamp that said thermal cycle is expanded.According to said effect, can provide the thermal reliability that can guarantee in order to the decline that suppresses luminous efficiency, with the various lighting devices of the lamp that attaches socket of the Mechanical Reliability of outer cover component etc.
In addition, the excellent heat resistance of light transparent ceramic, and mechanical strength is also big; Therefore, can constitute the safe lamp that attaches socket, even the lamp that attaches socket of this safety is especially at end of lifetime etc.; Rise the internal pressure cause when putting on outer cover component 14 by temperature, also not fusion easily or breakage.In addition, the light transparent ceramic that constitutes outer cover component 14 can be integrally formed fully, also can easily constitute the outer cover component 14 of different shape, thereby the lighting device and the ligthing paraphernalia of the lamp that attaches socket that is suitable for volume production etc. can be provided.
More than, in this embodiment, shown in Fig. 6 (a), also can spread all over entire circumference ground or the bottom of the opening 14a of outer cover component 14 is prolonged, the surface of substrate 13a of front end 14b and the illuminating part 13 of this opening 14a is come in contact.According to this formation; Outer cover component 14 forms thermally coupled with illuminating part 13, therefore, and can be by conductive force; The heat that is mainly produced by the face side of solid-state light emitting element is conducted to the outer cover component 14 that comprises pottery, thus can more produce effect the heat of illuminating part 13 is discharged.And, can realize more resultful thermolysis by simple formation, said simple formation is to instigate the front end of opening 14a only to be connected in the surface of substrate 13a.Moreover, also can use the good bonding agent of thermal conductivity, the front end 14b of the opening 14a of outer cover component 14 and the coupling part of illuminating part 13 are fixed.
In addition, shown in Fig. 6 (b), the slot part 17a of engaging unit 17 also can form rake 17a4, and the rake 17b1 of this rake 17a4 and teat 17b coincide.Constitute according to this, the rake of slot part 17a and teat 17b also is engaged and forms thermally coupled, therefore, can heat be conducted to outer cover component 14 from body 11 with more producing effect.
In addition, engaging unit 17 comprises: be arranged at body 11 slot part 17a, be arranged at the teat 17b of outer cover component 14, but on the contrary, also can slot part 17a be arranged at outer cover component 14, teat 17b is arranged at body 11.
And, for the body 11 of the lamp that attaches socket, also can for example form concavo-convex the outer surface part of exposing to foreign side or the satin weave shape, surface area is increased; Or implement white and smear processing or white alumite (alumite) processing, the heat emission rate (thermal emissivity) of outer surface part is improved.In addition; Implementing under the situation that white is smeared or white alumite is handled; When the lamp that attaches socket 10 with bulb-shaped is installed on ligthing paraphernalia 30 and lights a lamp, expose to the reflectivity of the outer surface of the body 11 of the aluminum of outer surface and uprise, utensil efficient is improved; And outward appearance and design aspect are also good, thereby commodity is improved.
And; In this embodiment; Lighting device also can constitute the lamp that attaches socket (A shape or PS shape) of the bulb-shaped of the shape that is similar to ordinary incandescent lamp bubble, the spherical lamp that attaches socket (G shape), columnarly attach the lamp (T shape) of socket and the lamp that attaches socket (R shape) of reflection, also can constitute the lamp that uses the smooth slim structure that the GX53 socket is arranged etc. in addition.In addition, be not limited to be similar to the lamp that attaches socket of the shape of ordinary incandescent lamp bubble, applicable to other various face shapings, and the lamp that attaches socket of purposes.In addition; Though be applicable to the small-sized lamp that attaches socket of the mini krypton lamp bubble of the E17 socket that can replace 60W; But be not limited thereto, also applicable to the 40W that can replace the E26 socket, 60W, and the lamp that attaches socket of the incandescent lamp bulb of 100W etc. or lamp-bulb type fluorescent lamp etc.
For the thermal diffusivity that makes solid-state light emitting element improves; Preferably; Utilize the thermal conductivity good metal; For example utilize the metal that comprises at least a metal in aluminium (Al), copper (Cu), iron (Fe) and the nickel (Ni) to form the body that comprises rigid body, in addition, the industrial materials of aluminium nitride also capable of using (AlN), carbonization silicon (SiC) etc. constitute said body.If face shaping forms following shape; Then the relevance factor for existing ligthing paraphernalia can improve; It is therefore preferable that said shape to be diameter from an end to the other end diminish successively, be similar to the shape of the profile of the neck portion the ordinary incandescent lamp bubble, but here; Being similar to the ordinary incandescent lamp bubble is not to be condition, is not limited to limited specific face shaping.In addition, further improve, also can be integrally formed in the outer peripheral face of body being the outstanding radially a plurality of fin (fin) or the pin (pin) etc. that dispels the heat to the other end side from an end side in order to make heat dispersion.
Solid-state light emitting element is for example preferable to be made up of the led chip that comprises gallium nitride (GaN) based semiconductor that sends blue light; (Electroluminescence, EL) element etc. is as the solid-state light emitting element of light emitting source with semiconductor laser (laser), organic electroluminescent but allow to adopt.In addition, though next luminous with white, also can send the light of redness, blueness, green etc., and can shades of colour be made up according to the purposes of ligthing paraphernalia.In addition, also can have dimming function or toning function.
Illuminating part can constitute the COB module; This COB module is to use COB (Chip on Board) technology; In a certain order, be rectangular or zigzag, or radial etc., a face side of regularly substrate being arranged and being installed on to a part or whole solid-state light emitting elements forms.SMD also capable of using (Surface Mount Device) packaging body (package) constitutes said illuminating part; Under the situation of SMD packaging body; Preferably, utilize a plurality of solid-state light emitting elements to constitute illuminating part, but also can select the solid-state light emitting element of essential number according to the purposes of illumination; For example constitute 4 element group about solid-state light emitting element, then form this crowd or a plurality of crowd.In addition, a solid-state light emitting element also capable of using constitutes said illuminating part.
As stated, illuminating part preferably constitutes light emitting module, and this light emitting module is that the solid-state light emitting element as light source is installed on the surface of substrate and constitutes, but also can be the illuminating part that does not comprise substrate and constitute.In addition, in order to constitute point module or face mould piece, the shape of illuminating part can be the polygon-shaped of tabular circle or quadrangle, hexagon etc., and can be Elliptical toroidal etc., and the shape of this illuminating part allows in order to obtain whole shape of target light distribution characteristic.
For illuminating part; For example preferably with mode that can heat conduction; Another face side of metal substrate is equipped on the formed base plate supports of the end side portion of body, whereby, the heat that is mainly produced by the rear side of solid-state light emitting element is discharged via body; Said metal substrate is equipped with solid-state light emitting element a face side, but is not limited to said illustrative formation in order to the concrete unit that dispels the heat across body.For example, base plate supports portion can be smooth and has large-area formation, or also can be the support portion of the section of the being shape of ring-type, and the material of substrate also is not limited to metal, also can be the synthetic resin of glass ring oxidation thing etc.In addition, illuminating part can only discharge the heat that solid-state light emitting element produced via body, also can via body and other members for example the socket member dispel the heat.
In addition; Be preferably and utilize the lampshade of following analogous shape to constitute outer cover component; The lampshade of said analogous shape is the shape identical or roughly the same with the shape of following bulb; And be and the identical or roughly the same shape of bulb T-shaped, R shape, said bulb have with general lightings such as incandescent lamp bulb with the identical face shaping of the bulb of bulb, and be the sphere that is commonly called lachrymal shape or G shape of A shape, PS shape etc.; But said outer cover component also can be the shape that is dish of the lamp that constitutes smooth slim structure; And following protection outer cover capable of using constitutes said outer cover component, and this protection outer cover does not receive externalities in order to the charging part of the solid-state light emitting element of protection light emitting diode etc. etc., and is transparent or semitransparent dish shape.
As an example, outer cover component is preferably and adopts following formation, that is, outside dimension is about below the 700mm, and wall thickness dimension is 0.5mm～3mm, is preferably 1mm～2mm, especially is about below the 200mm, and wall thickness dimension is about about 1mm.In addition, according to desired characteristic, outer cover component be water white transparency, milky etc. have the translucent of light diffusing, in addition, can implement painted etc. to said outer cover component.For light distribution characteristic is improved, also can form the reflector element of reflectance coating etc. in the part of lampshade etc.In addition, outer cover component preferably constitutes peripheral device, and device substantive ground in this periphery is given illuminating part airtight, but airtight fully be not condition, as long as airtight optically, for example also can form the hole of little ventilation usefulness etc. in the part.
The socket member allows to adopt whole socket that can be installed on lamp socket, and this lamp socket can be installed ordinary incandescent lamp bubble or lamp-bulb type fluorescent lamp etc., but generally speaking, the socket of the E17 of the most universal Edison's type or E26 etc. is preferable.In addition; For material; Metal capable of using constitutes whole socket, and socket can be resinous socket, and said resinous socket utilizes the metal of copper coin etc. to constitute electric connecting member; And utilize synthetic resin to constitute the part except said electric connecting member; Moreover also can be the GX53 socket of the lamp that is used in smooth slim structure, also can be the socket of the terminal of employed pin shape in the fluorescent lamp, also can be the socket of the terminal of the L font that is used in the hook ceiling, and be not limited to specific socket.
Consider directly the light source of ordinary incandescent lamp bubble etc. is changed, advantageously will but also said ignition device can be set in addition with so that the ignition device that solid-state light emitting element is lit a lamp is arranged in the body.In addition, ignition device also can comprise in order to the light adjusting circuit that solid-state light emitting element is carried out light modulation or the circuit etc. of mixing colours.
In this embodiment; Ligthing paraphernalia allows for the ligthing paraphernalia of ceiling flush type, ligthing paraphernalia, the ligthing paraphernalia of hanging type and the ligthing paraphernalia of wall mount type etc. of direct mount type; Lampshade, shade (shade) and reflector etc. can be installed as system light body on apparatus body, also can expose as the lamp that attaches socket of light source.In addition, be not limited to a lamp that attaches socket is installed on apparatus body, also can set a plurality of lamps that attach socket.And, also can constitute the ligthing paraphernalia etc. of the large-scale indoor and outdoor of office's facilities such as (office)/professional usefulness.
Moreover, in Fig. 6 (a), Fig. 6 (b) of the variation of this embodiment of expression, to enclosing identical symbol to the identical part of Fig. 5, and omitted detailed explanation with Fig. 1 (a)～Fig. 1 (d).More than, the preferred embodiments of the utility model is illustrated, but the utility model is not limited to said embodiment, in the scope of the aim that does not break away from the utility model, can carry out various design alterations.
Claims (4)
1. lighting device is characterized in that comprising:
Body has thermal conductivity and comprises rigid body;
Illuminating part is equipped on said body and comprises solid-state light emitting element;
Outer cover component is arranged to said illuminating part is covered, and comprises the rigid body with thermal conductivity and light transmission; And
The engaging unit comprises slot part and teat, and said body is engaged with said outer cover component,
The heat that said solid-state light emitting element produced is via said body and said engaging unit and conduct to said outer cover component.
2. lighting device according to claim 1 is characterized in that,
The said slot part of said engaging unit is formed at said body,
Said teat is formed at said outer cover component.
3. lighting device according to claim 1 and 2 is characterized in that,
Said outer cover component comprises light transparent ceramic, the wall thickness of said light transparent ceramic form heterogeneity.
4. ligthing paraphernalia is characterized in that comprising:
Apparatus body; And
Be installed on apparatus body according to each described lighting device in the claim 1 to 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011045611A JP2012182085A (en) | 2011-03-02 | 2011-03-02 | Lighting device and lighting fixture |
| JP2011-045611 | 2011-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561471U true CN202561471U (en) | 2012-11-28 |
Family
ID=47013105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200744709U Expired - Fee Related CN202561471U (en) | 2011-03-02 | 2012-03-01 | A lighting device and a lighting apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012182085A (en) |
| CN (1) | CN202561471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054889A1 (en) * | 2013-10-16 | 2015-04-23 | 刘骏涛 | Decorative lamp |
| CN106051504A (en) * | 2016-07-27 | 2016-10-26 | 浙江阳光美加照明有限公司 | LED bulb lamp and automatic assembly method |
| CN106051503A (en) * | 2016-07-19 | 2016-10-26 | 浙江阳光美加照明有限公司 | LED bulb lamp used on fan |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016152164A (en) * | 2015-02-18 | 2016-08-22 | アイリスオーヤマ株式会社 | Led lamp and led lighting device |
| JP6758036B2 (en) * | 2015-09-29 | 2020-09-23 | 三菱電機株式会社 | Lighting equipment and lighting equipment |
-
2011
- 2011-03-02 JP JP2011045611A patent/JP2012182085A/en not_active Withdrawn
-
2012
- 2012-03-01 CN CN2012200744709U patent/CN202561471U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015054889A1 (en) * | 2013-10-16 | 2015-04-23 | 刘骏涛 | Decorative lamp |
| CN106051503A (en) * | 2016-07-19 | 2016-10-26 | 浙江阳光美加照明有限公司 | LED bulb lamp used on fan |
| CN106051504A (en) * | 2016-07-27 | 2016-10-26 | 浙江阳光美加照明有限公司 | LED bulb lamp and automatic assembly method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012182085A (en) | 2012-09-20 |
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